Stool



FIG. 1 is front, right side perspective view of a stool showing my new design;

FIG. 2 is a rear, right side perspective view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof, the right side view being a mirror image of the left side view;

FIG. 5 is a front view thereof; and,

FIG. 6 is a top view thereof. 

CLAIM I claim the ornamental design for a stool, as shown and described. 